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FILE - This Oct. 29, 2012 file photo shows Vice President Joe Biden speaking in front of "Vote Early" sign during a campaign rally at the Covelli Centre, Monday, in Youngstown, Ohio. One week before a close election, superstorm Sandy has confounded the presidential race, halting early voting in many areas, forcing both candidates to suspend campaigning and leading many to ponder whether the election might be postponed. It could take days to restore electricity to all of the more than 8 million homes and businesses that lost power when the storm pummeled the East Coast. That means it’s possible that power could still be out in some states on Election Day _ a major problem for areas that rely on electronic voting machines. (AP Photo/Matt Rourke, File)

FILE - This Oct. 29, 2012 file photo shows Vice President Joe Biden speaking in front of "Vote Early" sign during a campaign rally at the Covelli Centre, Monday, in Youngstown, Ohio. One week before a close election, superstorm Sandy has confounded the presidential race, halting early voting in many areas, forcing both candidates to suspend campaigning and leading many to ponder whether the election might be postponed. It could take days to restore electricity to all of the more than 8 million homes and businesses that lost power when the storm pummeled the East Coast. That means it’s possible that power could still be out in some states on Election Day _ a major problem for areas that rely on electronic voting machines. (AP Photo/Matt Rourke, File)